Download of ArtNetView 2.2.1 for Mac was available from the developer's website when we last checked. We cannot confirm if there is a free download of this app available. The actual developer of this free Mac application is Haute Technique BV. Please check the Mac app with an antivirus before launch as it is downloaded from the developer's website, and we cannot ensure that it is safe. The application lies within Internet & Network Tools, more precisely Network tools.
From the developer:
ArtNetView is a simple application designed to help you view and monitor the Art-Net data that flows through your network. Setting up the app is easy. All you need to do is plug in your Art-Net network and see what is going on all different universes.
You may want to check out more software for Mac, such as FileMaker Server, Dynagen or RUMped, which might be related to ArtNetView.